Normal-state pseudogap and electron flat dispersion in copper oxide materials
Strongly Correlated Electrons
2009-10-31 v1 Superconductivity
Abstract
The anomalous momentum and doping dependence of the electron spectral function and electron dispersion for copper oxide materials in the underdoped regime are studied within the t-J model. It is shown that the electron spectrum is changed with dopings, and the electron dispersion exhibits a flat band around (,0) point in the Brillouin zone, which leads to the normal-state pseudogap formation. The theoretical results are consistent with the experiments and numerical simulations.
Cite
@article{arxiv.cond-mat/0006084,
title = {Normal-state pseudogap and electron flat dispersion in copper oxide materials},
author = {Feng Yuan and Shiping Feng},
journal= {arXiv preprint arXiv:cond-mat/0006084},
year = {2009}
}
Comments
13 pages, Latex, Two figures are included, accepted for publication in Phys. Lett. A